Distributed antenna systems
A Compact Broadband Slot Antenna for Indoor Distributed Antenna Systems
... slot antenna for indoor distributed antenna systems is ...proposed antenna consists of a deformed printed monopole on one side of the substrate and a polygon slot in the circular ground ...
6
A Compact Broadband Slot Antenna for Indoor Distributed Antenna Systems
... the antenna slot is, the larger the impedance bandwidth ...slot antenna is presented for indoor distributed antenna systems in this letter, and its size is greatly reduced due to the ...
7
System-Level Simulation and Radio Resource Management for Distributed Antenna Systems with Cognitive Radio and Multi-Cell Cooperation using Imperfect Information
... The joint power and beam-forming optimization problem is here reformulated as a weighted least squares (WLS) optimization problem. This differs from conventional approaches (e.g., [16]-[18]), where the problem is ...
17
Probabilistic analysis of system outage in distributed antenna systems with composite channels
... Distributed antenna systems (DAS) play a key role in future wireless communications. Despite the increasing previous research work, the channel models of DAS lack generality. This paper presents a ...
10
Power Allocation Criteria for Distributed Antenna Systems with D2D Communication
... for distributed antenna systems (DAS) with D2D ...Keywords: Distributed antenna systems, Co-located antenna systems, D2D communication, Spectral Efficiency, Energy ...
13
Performance analysis for high speed railway distributed antenna systems with imperfect channel state information
... of antenna selection for high-speed railway (HSR) distributed antenna systems with imperfect channel state information ...HSR systems, distributed antennas mounted on top of the ...
12
Single user MIMO versus multi user MIMO in distributed antenna systems with limited feedback
... Figure 4. But, in contrast to the 8 − 0/0 DAS, this gap can be strongly reduced by means of transmit antenna subset selection. A very similar, even larger gain, is possible by exploiting knowledge about the ...
20
Design and experimental evaluation of a low complexity spatial combiner for LTE distributed antenna systems
... The physical layer of LTE was simulated in Matlab using the Winner II channel models [11]. The worst possi- ble scenario considered in terms of delay spread and frequency selectivity is B1 (urban microcell) with non- ...
8
Spatial cross correlation modeling for propagation channels in indoor distributed antenna systems
... Figure 13 depicts a measurement environment where the locations of two distributed Txs are confined, respec- tively, in the two marked ranges that are symmetrical w.r.t. the Rx’s location along the dashed line. ...
11
Optimal Antenna Deployment for Energy Efficiency Maximization in Distributed Antenna System
... of distributed antenna systems (DAS) is varied with antenna ...optimal antenna location which maximizes EE for ...and antenna number) respectively as before, two of them will be ...
12
Low-Profile Dual-Polarized Omnidirectional Antenna for Broadband Indoor Distributed Antenna System
... indoor distributed antenna systems (IDAS) which are employed to provide wireless communication coverage in high-traffic indoor areas are becoming more and more important [1, ...polarized antenna ...
7
Security Techniques in Distributed Systems
... information systems is the most important principle that can also be said that the most difficult, because security must be maintained throughout the ...of distributed systems are divided into two ...
5
Distributed File Systems: A Survey
... on distributed environments to process and analyse large amounts of ...of Distributed File Systems (DFSs). The main aim of a distributed file system (DFS) is to allow users of physically ...
6
TANGO: Transparent heterogeneous hardware Architecture deployment for eNergy Gain in Operation.
... heterogeneous systems can not only han- dle workload with fewer and/or smaller servers (cost saving) but also slash the energy used to run certain applications, which helps gain clear benefits and addresses the ...
8
Secure Distributed Deduplication Systems
... of distributed reliable deduplication ...new distributed deduplication systems which are highly ...are distributed across multiple cloud ...deduplication systems we use deterministic ...
6
Research Directions in Distributed Systems
... all distributed operating systems CORBA hides the network from the developer, consequently it provides no support for such non-reliable networks and ...
14
Distributed file systems for Unix
... - 3 - TABLE OF CONTENTS 1.0 Introduction 2.0 Concepts 3.0 DNIX Transparent Remote File Access Systems 4.0 Definitions and 3.1 Newcastle Connection 3.2 COCANET 3.3 S/F 3.4 4.2/4.3 Berkele[r] ...
111
Performance measurement of distributed systems
... The monitor described below was used to determine the average remote and local components of response time for a user session, and to investigate the effect of network workload on these [r] ...
67
Lightweight Protocols for Distributed Systems
... trmisaction systems are now built using TCP. However, highly distributed progrîuns may have very dynmnic patterns of client-server interaction, which defeat such caching, mid still require a protocol witli ...
196
Domination of Discrete Distributed Systems
... domination and classification of such controlled systems, with respect to an output operator C. We give the main properties of this notion and we explore the case of discrete versions of diffusion processes as ...
10